// 
// ExecutionEnvironment.cs
//  
// Author:
//       Lluis Sanchez Gual <lluis@novell.com>
// 
// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;

namespace MonoDevelop.Core.Execution
{
	public class ExecutionEnvironment
	{
		Dictionary<string, string> variables;
		
		public ExecutionEnvironment ()
		{
			variables = new Dictionary<string, string> ();
		}
		
		public ExecutionEnvironment (Dictionary<string, string> vars)
		{
			this.variables = vars;
		}
		
		public Dictionary<string, string> Variables {
			get { return variables; }
		}
		
		public void MergeTo (ProcessStartInfo pinfo)
		{
			MergeTo (pinfo.EnvironmentVariables);
		}
		
		public void MergeTo (StringDictionary vars)
		{
			foreach (KeyValuePair<string,string> ev in variables) {
				if (ev.Value == null)
					vars.Remove (ev.Key);
				else
					vars [ev.Key] = ev.Value;
			}
		}
	}
}

